>> Search results for: 520600520085 NSN Search Results National Stock Number (NSN) Description 4240-01-343-2220, 4240013432220 POWERED-AIR PURIFYING 4240-01-366-2579 , 4240013662579 POWERED-AIR PURIFYING RESPIRATOR 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information